linux-ipsec: sizes

>>> Hmmm...the module, without experimental, with debugging is 1,204,025.

Remember, wc (or ls -l) gives you the size of the object module, which includes a lot of junk like symbol tables. What's wanted here is the "size" command, which reports the actual size of the code and data hidden inside. That's what actually takes up space in a kernel.

The size command shows (output edited for terseness):

text    data    bss     dec (total)
48816   18883   592     68291   	(debugging)
39782   10623   592     50997   	(no debugging)

So adding the debugging code costs about 9KB of code space and about 8KB of initialized data space (bss is uninitialized data space), a total growth of about 17KB in a module that starts out at 51KB.

This is more overhead than I thought. Sigh, it may be worth retaining the option of configuring it out.

                                                          Henry Spencer
                                                       henry@spsystems.net
                                                     (henry@zoo.toronto.edu)